CN109247037A

CN109247037A - For carrying out the method and system of wireless power transfer via shielded antenna

Info

Publication number: CN109247037A
Application number: CN201780025925.3A
Authority: CN
Inventors: 郑胜宪
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2016-04-29
Filing date: 2017-02-21
Publication date: 2019-01-18
Also published as: JP2019516337A; WO2017189079A1; EP3440759A1; EP3440759B1; KR20190002475A; BR112018072158A2; US20170317530A1

Abstract

Present disclose provides the method and apparatus for wireless transmission power.The first aspect of the disclosure is a kind of for wirelessling receive the device of power.Device includes receiving circuit, which is configured as receiving wireless communication and charge power.Device further includes metal structure, which limits the gap that second surface is extended to from first surface, and by metal structure, first surface is opposite with second surface.Metal structure is configured as from the wireless charging electric field reception charge power vibrated with first frequency.Metal structure is configured to that received power is transmitted to reception circuit via the first connection feed and the second connection feed.Metal structure, which is also further configured, receives circuit not by the interference of the frequency other than first frequency for shielding.

Description

For carrying out the method and system of wireless power transfer via shielded antenna

Technical field

The present disclosure generally relates to wireless power transmitting, and more particularly relating to for power to be wirelessly transmitted to can be by The method and apparatus for the electronic equipment worn in implantation user's body or on user's body.

Background technique

Being implanted the electronic equipment worn in user's body or on user's body can be by being exposed to various telecommunications Number or electric field and damage.In wireless power application, wireless power charging system can be provided in the feelings of not physical electrical connection The ability for being charged and/or being powered to electronic equipment under condition, thus the quantity of component needed for reducing operation electronic equipment, with And simplify the use of electronic equipment.This wireless power charging system may include wireless power transmission machine and other transmit circuits System is configurable to generate magnetic field, which can be used for power wireless transmission to wireless power receiver.Correspondingly, When receiving wireless power and/or data transmission by receiver (for example, Medical Devices that medical implant or user wear), need The method and apparatus for being used to protect inner components from damage.

Summary of the invention

The various realizations of method and apparatus in the range of appended claims respectively have several aspects, without list A one aspect is solely responsible for desired properties described herein.The case where not limiting the range of appended claims Under, there has been described some prominent features.

An aspect of this disclosure is a kind of for wirelessling receive the device of power.Device includes receiving circuit, this connects Circuit is received to be configured as receiving wireless communication and charge power.Device further includes metal structure, which limits from first Surface extends to the gap of second surface, and by metal structure, first surface is opposite with second surface.Metal structure is matched It is set to from the wireless charging electric field reception charge power vibrated with first frequency.Metal structure is configured to connect via first It connects feed and the second connection feed and received power is transmitted to reception circuit.Metal structure is also further configured to be connect for shielding Circuit is received not by the interference of the frequency other than first frequency.

Detailed description of the invention

Elaborate that the one or more of technical solution described in this specification realize in the the accompanying drawings and the following description Details.From specification, drawings and the claims, other feature, aspect and advantage be will be apparent.

Fig. 1 is the functional block diagram according to the wireless power transmission system of an exemplary realization.

Fig. 2 is the functional block diagram for the wireless power transmission system realized according to another exemplary.

Fig. 3 is the emission circuit system according to Fig. 2 including transmitting or receiving antenna of exemplary realization or receives circuit The schematic diagram of a part of system.

Fig. 4 is the simplification that can be used for the transmitter in induced power transmission system according to the exemplary realization of the disclosure Functional block diagram.

Fig. 5 is the simplification that can be used for the receiver in induced power transmission system according to the exemplary realization of the disclosure Functional block diagram.

Fig. 6 shows the view for being applied to the wireless power transmission system 600 in the region of human body.

Fig. 7 shows the rendering schematic diagram of the shielding around the electrical components for being placed in implantation material.

Fig. 8 A shows the first view of the implantation material with shielding and two lines feed.

Fig. 8 B shows the second view of the implantation material of Fig. 8 A.

Fig. 9 A- Fig. 9 C shows the alternative configuration of the shielding part, slot and/or bridge of the implantation material of Fig. 7 and Fig. 8.

Figure 10 A shows the 3D chart of the radiation pattern of the antenna corresponding to implantation material (for example, implantation material of Fig. 7).

Figure 10 B shows function of the signal strength as frequency of the antenna of instruction implantation material (for example, implantation material of Fig. 7) Chart.

It includes the side that wireless power and communication are received in implantable devices that Figure 11, which is according to the exemplary realization of the disclosure, The flow chart of multiple steps of method.

The various features illustrated in attached drawing can be not drawn to scale.Correspondingly, for clarity, can arbitrarily expand Or reduce the size of various features.In addition, some attached drawings can not describe all components of given system, method or equipment.Most Afterwards, run through the specification and drawings, similar reference label can be used to indicate that similar feature.

Specific embodiment

Be intended as the description of exemplary realization below in relation to the detailed description that attached drawing is illustrated, and be not intended to expression its In can be with only realization of the disclosure.The term " exemplary " used in this specification means " to be used as one Example, example or explanation ", and be not necessarily to be construed as realizing than other examples property preferred or advantageous.Detailed description Detail including the purpose for the comprehensive understanding for providing exemplary realization.In some instances, some equipment are with frame Shown in the form of figure.

Wireless transmission power may refer to without using physics electric conductor, will with electric field, magnetic field, electromagnetic field or The other associated any type of energy of person are transmitted to receiver (for example, can transmit by free space from transmitter Power).Power output into wireless field (for example, magnetic field) can be received by " receiving coil ", capture or be coupled, to realize Power transfer.

Fig. 1 is the functional block diagram according to the wireless power transmission system 100 of an exemplary realization.It can be by input power 102 provide from power supply (not shown) to transmitter 104, wireless for executing to generate wireless (for example, magnetic or electromagnetism) field 105 Power transfer.Receiver 108 may be coupled to wireless field 105, and generates output power 110, for by being coupled to output The equipment (not shown) of power 110 stores and consumption.Both transmitter 104 and receiver 108 are separated distance 112.

In an exemplary realization, transmitter 104 and receiver 108 are configured according to mutual resonant relationship.Work as reception When the resonance frequency of machine 108 and the substantially the same or very close resonance frequency of transmitter 104, transmitter 104 and reception Transmission loss between machine 108 can be reduced.Therefore, with may require very close (for example, sometimes in millimeter) large-scale day The pure induction solution of line coil is compared, which can provide wireless power transfer over a large distance.Therefore, humorous Vibration sense answers coupling technique that can allow improved efficiency and power transfer using various induction coil configurations apart from upper various.

When receiver 108 is located in the wireless field 105 generated by transmitter 104, receiver 108 can receive power. Wireless field 105 corresponds to the region that the energy wherein exported by transmitter 104 can be captured by receiver 108.Wireless field 105 can To correspond to " near field " of transmitter 104, as will be described further below.Wireless field 105 can also be than being considered as " close " longer apart from upper operation.Transmitter 104 may include transmitting antenna 114 (for example, coil), for energy to be emitted to Receiver 108.Receiver 108 may include receiving antenna or coil 118, for receiving or capturing from the transmitting of transmitter 104 Energy.Near field can correspond to the region that wherein there is anti-field of the forceful electric power, the anti-field of the forceful electric power be by transmitting antenna 114 electric current and Caused by charge, power is radiate by minimally from transmitting antenna 114.Near field can correspond in transmitting antenna Region in 114 about wavelength (or its score).

Fig. 2 is the functional block diagram for the wireless power transmission system 200 realized according to another exemplary.System 200 includes hair Penetrate machine 204 and receiver 208.Transmitter 204 may include emission circuit system 206, and emission circuit system 206 may include vibration Swing device 222, drive circuit 224 and filtering and match circuit 226.Oscillator 222 can be configured as generation in required frequency The signal of rate, the required frequency can be adjusted in response to frequency control signal 223.Oscillator 222 can be by oscillator signal It is supplied to drive circuit 224.Drive circuit 224 can be configured as based on input voltage signal (V_D) 225 and for example The resonance frequency of transmitting antenna 214 drives transmitting antenna 214.Drive circuit 224 can be switching amplifier, be configured as Square wave and output sine wave are received from oscillator 222.For example, drive circuit 224 can be E class A amplifier A.

Filtering and match circuit 226 can filter out harmonic wave or other unwanted frequencies, and by the impedance of transmitter 204 With the impedance matching of transmitting antenna 214.As driving transmitting antenna 214 as a result, wireless field can be generated in transmitting antenna 214 205, in the horizontal wirelessly output power for being sufficiently used for charging to battery 236.

Receiver 208 may include receiving circuit system 210, and receiving circuit system 210 may include 232 He of match circuit Rectifier circuit 234.Match circuit 232 can match the reactance for receiving circuit system 210 with receiving antenna 218.Rectifier Circuit 234 can generate direct current (DC) power output from exchange (AC) power input, to charge to battery 236, as shown in Figure 2. Receiver 208 and transmitter 204 can be additionally in discrete communication channels 219 (for example, bluetooth, ZigBee, honeycomb etc.) Communication.The characteristics of receiver 208 and transmitter 204 can alternatively use wireless field 205 communicates via in-band signaling.

Receiver 208 can be configured as determination and be emitted by transmitter 204 and be by the amount of the received power of receiver 208 It is no to charge suitable for battery 236.

Fig. 3 is the emission circuit system 206 according to Fig. 2 including transmitting or receiving antenna of exemplary realization or receives electricity The schematic diagram of a part of road system 210.As shown in figure 3, transmitting or reception circuit system 350 may include antenna 352.Antenna 352 can also be referred to as or be configured as " annular " antenna 352.Antenna 352 can also be referred to herein as or be matched It is set to " magnetic " antenna or induction coil.Term " antenna " generally refers to wirelessly can to export or receive energy another to be coupled to The component of " antenna ".Antenna is also referred to as being configured as wirelessly exporting or receiving the coil of the type of power.As herein Used, one of " power transfer component " that antenna 352 is configured as wirelessly exporting and/or receiving the type of power shows Example.

Antenna 352 may include air-core or physics core (such as, ferrite core) (not shown).

Transmitting or reception circuit system 350 can be formed or including resonance circuit.Annular or the resonance frequency of magnetic antenna are Based on inductance and capacitor.Inductance can be simply the inductance generated by antenna 352, however, capacitor can be added to antenna Inductance, with required resonance frequency generate resonance structure.It, can be by capacitor 354 and electricity as a non-limiting example Container 356 is added to transmitting or receives circuit system 350, to generate resonance circuit.For emission circuit system, signal 358 can To be the input in resonance frequency, so that antenna 352 generates wireless field 105/205.For receiving circuit system, signal 358 It can be output, to the power supply of load (not shown) or charging.For example, load may include wireless device, wireless device is matched It is set to by charging from the received power of wireless field.

It the use of other resonance circuits that other components are formed is also possible.As another non-limiting example, capacitor It can be placed in parallel between two terminals of circuit system 350.

Referring to Figures 1 and 2, transmitter 104/204 can export magnetic (or electromagnetism) field changed over time, wherein frequency pair It should be in the resonance frequency of transmitting antenna 114/214.When receiver 108/208 is in wireless field 105/205, change over time Magnetic (or electromagnetism) field can generate electric current in receiving antenna 118/218.As described above, if 118/218 quilt of receiving antenna It is configured to the frequency resonance in transmitting antenna 114/214, then energy can be delivered effectively.As set forth above, it is possible to rectify The AC signal inducted in receiving antenna 118/218, to generate the DC signal that may be provided as to load charging or power supply.

Fig. 4 is the transmitter (PTU) that can be used in induced power transmission system according to the exemplary realization of the disclosure Simplification functional block diagram.As shown in figure 4, transmitter or PTU 400 include emission circuit system 402 and transmitting antenna 404, transmitting Antenna 404 is operatively coupled to emission circuit system 402.Transmitting antenna 404 can be configured as above for Fig. 2 institute The transmitting antenna 214 of description.In some implementations, transmitting antenna 404 can be coil (for example, induction coil).In some realities In existing, transmitting antenna 404 can be associated with biggish structure (such as, desk, cushion, lamp or other fixed structures).Transmitting Antenna 404, which can be configured as, generates electromagnetic field or magnetic field.In an exemplary realization, transmitting antenna 404 can be configured For be sufficiently used for in charged area receiver device charging or power supply power level, by power emission to receiver Equipment.

If emission circuit system 402 can receive power by supply (not shown).Emission circuit system 402 can wrap Include the various parts for being configured as driving transmitting antenna 404.In some exemplary implementations, emission circuit system 402 can be by Presence and the composition of receiver device as described herein are configured to adjust the transmission of wireless power.Therefore, emit Machine 400 can safely and effectively provide wireless power.

Emission circuit system 402 may further include controller 415.In some implementations, controller 415 can be micro- Controller.In other implementations, controller 415 may be implemented as specific integrated circuit (ASIC).Controller 415 can be grasped It is directly or indirectly connected to each component of emission circuit system 402 with making.Controller 415 can be configured to receive The information of each component from emission circuit system 402, and calculating is executed based on received information.Controller 415 can To be configurable to generate the control signal for being directed to each component, the operation of the adjustable component of signal is controlled.Therefore, controller 415 can be configured as based on the result for the calculating being executed by it and adjust power transfer.

Emission circuit system 402 may further include memory 420, and memory 420 is operably connected to controller 415.Memory 420 may include random access memory (RAM), electrically erasable programmable read-only memory (EEPROM), dodge It deposits or non-volatile ram.Memory 420 can be configured as either temporarily or permanently storing data, which is used for by controlling What device 415 executed reads and writees operation.For example, memory 420 can be configured as the calculating knot stored as controller 415 The data that fruit generates.Therefore, memory 420 allows controller 415 to adjust transmit circuit system based on data change with the time System 402.

Emission circuit system 402 may further include oscillator 412, and oscillator 412 is operably connected to controller 415.Oscillator 412 can be configured as above for oscillator 222 described in Fig. 2.Oscillator 412 can be configured as Oscillator signal (for example, radio frequency (RF) signal) is generated in the operating frequency of wireless power transmitting.In some exemplary implementations, it shakes Swinging device 412 can be configured as in the operation of 6.78MHz ISM band.Controller 415 can be configured as in launching phase (or work Recycle) during be selectively enabled oscillator 412.Controller 415 can be configured to the frequency of adjustment oscillator 412 Rate or phase, this can reduce out-of-band emission, especially when from a frequency conversion to another frequency.As described above, transmitting Circuit system 402 can be configured as to transmitting antenna 404 and provide a certain amount of power, this can be around transmitting antenna 404 It generates energy (for example, magnetic flux).

Emission circuit system 402 may further include drive circuit 414, and drive circuit 414 is operably connected To controller 415 and oscillator 412.Drive circuit 414 can be configured as above for the electricity of driver described in Fig. 2 Road 224.Drive circuit 414 can be configured as driving from 412 received signal of oscillator, as described above.

Emission circuit system 402 may further include low-pass filter (LPF) 416, and low-pass filter (LPF) 416 can It is operatively coupled to transmitting antenna 404.Low-pass filter 416 can be configured as above for described in Fig. 2 filtering and The filtering part of match circuit 226.In some exemplary implementations, low-pass filter 416 can be configured as reception by driving The current analog signal and voltage analog signal that device circuit 414 generates, and it is filtered.Current analog signal may include Changing currents with time signal, and voltage analog signal may include time-varying voltage signal.In some implementations, low-pass filter 416 can To change the phase of analog signal.Low-pass filter 416 can cause same amount of phase change to electric current and voltage, to support Disappear change.In some implementations, controller 415 can be configured as compensation phase change as caused by low-pass filter 416.It is low Bandpass filter 416 can be configured as the level for being reduced to harmonic emissions and can preventing self-interference.Other examples realization can To include different filter topologies, such as notch filter, the assigned frequency that decays and pass through other frequencies.

Emission circuit system 402 may further include fixed impedance matching circuit 418, fixed impedance matching circuit 418 It is operably connected to low-pass filter 416 and transmitting antenna 404.Match circuit 418 can be configured as such as above for Fig. 2 The compatible portion of described filtering and match circuit 226.Match circuit 418 can be configured as emission circuit system 402 Impedance (for example, 50 ohm) matched with transmitting antenna 404.Other examples realization may include Adaptive impedance matching, from Adapt to impedance matching can based on measurable transmission metric (such as measured output power to transmitting antenna 404 or The DC electric current of drive circuit 414) change.Emission circuit system 402 may further include discrete device, discrete circuit And/or the integrated package of component.

Transmitting antenna 404 may be implemented as with thickness, width and the metal class for being selected to maintain low resistance loss The aerial band of type.

Fig. 5 is the block diagram for the receiver (PRU) realized according to one of the disclosure.As shown in figure 5, receiver or PRU 500 include receiving circuit system 502, receiving antenna 504 and load 550.Receiver 500 is further coupled to load 500, is used for Provide it the received power of institute.Receiver 500 is illustrated as in the outside for the equipment for serving as load 550, but can also be by It is integrated into load 550.Receiving antenna 504, which can may be operably connected to, receives circuit system 502.Receiving antenna 504 can be with It is configured as above for receiving antenna 218 described in Fig. 2.In some implementations, receiving antenna 504 can be tuned to In the frequency of the resonance frequency similar to transmitting antenna 404 or in specified frequency range interior resonance, as described above.Receive day Line 504 can have similar size with transmitting antenna 404, or can have different rulers based on the size for loading 550 It is very little.Receiving antenna 504 can be configured as the magnetic field for being coupled to and being generated by transmitting antenna 404, as described above, and will be certain The received energy of institute of amount, which is supplied to, receives circuit system 502, to power or charge to load 550.

Receiving antenna 504 and load 550 can be operatively coupled to by receiving circuit system 502.Receiving circuit system can To be configured as above for reception circuit system 210 described in Fig. 2.Receiving circuit system 502 can be configured as Impedance with receiving antenna 504 can provide effective reception to wireless power.Receiving circuit system 502 can be configured For based on from the received energy of receiving antenna 504 generate power.Reception circuit system 502 can be configured as will be generated Power is supplied to load 550.In some implementations, receiver 500, which can be configured as to transmitter 400, emits signal, the letter Number instruction is from the received quantity of power of the institute of transmitter 400.

Receiving circuit system 502 may include processor-signaling controller 516, be configured as coordinated receiver 500 Processing, as described below.

It receives circuit system 502 and impedance matching is supplied to receiving antenna 504.Circuit system 502 is received to turn including power Change circuit system 506, for by received energy be converted to by 550 charge powers that use of load.Circuit for power conversion system System 506 includes the AC-DC converter 508 for being coupled to DC-DC converter 510.AC-DC converter 508 will be in receiving antenna 504 The AC energy signal received is rectified into non-alternating power, and DC-DC converter 510 is converted to the AC energy signal being rectified The energy potential (for example, voltage) compatible with load 550.Consider various AC-DC converters, including part of rectifier and all rectifications Device, adjuster, electric bridge, frequency multiplier and converter,linear and dc-dc converter.

Receiving circuit system 502 may further include match circuit 512.Match circuit 512 may include shunting configuration Or one or more resonant capacitors of arranged in series.In some implementations, these resonant capacitors can be by receiving antenna tune It is humorous to arrive specific frequency or particular frequency range (for example, resonance frequency).

Load 550, which can be operatively attached to, receives circuit system 502.Load 550 can be configured as closed above The battery 236 described in Fig. 2.In some implementations, load 550 can be in the outside for receiving circuit system 502.In other realities In existing, load 550, which can be integrated into, receives circuit system 502.

User's body, which is exposed to external interference, may damage or negatively affect in implantation user's body or be worn on use Electronic equipment on the body of family.For example, being exposed to X-ray signal and field, magnetic resonance imaging (MRI) signal and field and computer Tomoscan (CT) scanning signal and field can damage electronic equipment, and can negatively affect user health status and/ Or the function of electronic equipment itself.In view of this external interference it is generally existing and more and more using implantation material and/or Other electronic equipments are of increasing concern to the potential damage of electronic equipment for bodily fuctions to be monitored and controlled.Correspondingly, electric Sub- equipment can be implemented by shielding construction, and shielding construction can prevent external interference from damaging or in other ways adversely Influence the internal part for the electronic equipment being located in shielding construction.

Fig. 6 shows the system 600 of the implantation material in the region for being located at and having the human body there are two region or tissue.System 600 Including two implantation materials 602a and 602b.Each implantation material in implantation material 602a and 602b respectively includes internal circuit components 604a and 604b.Implantation material 602a and 602b is each further to respectively include shielding part 606a and 606b, shielding part 606a and 606b Protect internal circuit components 604a and 604b from the electric signal or electric field outside external interference or implantation material 602a and 602b Influence.In some embodiments, internal circuit components 604a and 604b can include respectively receiver (not shown), be configured For via wireless field 605 from 608 radio reception power of transmitter and/or data.In some embodiments, corresponding receiver can To be transceiver, it is also arranged as from implantation material 602a and 602b radio transmitted power and/or data.In some embodiments In, receiver corresponds to the receiver 500 of Fig. 5.When in the internal circuit components 604a and implantation material 602b of implantation material 602a When portion circuit block 604b receives power via receiver, they can correspond to the load 550 of Fig. 5.Transmitter 608 corresponds to The transmitter 400 of Fig. 4.The region includes the area Liang Ge 601a and 601b.The area Liang Ge 601a and 601b can respectively correspond to internal area Different types of tissue in domain.For example, area 601a can correspond to musculature, and area 601b can correspond to bone.It plants Enter object 602a to be located in area 601a, and implantation material 602b is located in area 601b.

The region of the body of system 600 can by can wherein need monitor or control one or more functions it is any its The region of its living body replaces.In the region of human body as described in Figure 6, implantation material 602a and 602b (e.g., including it is various Electronic equipment) it can control or monitor various functions, signal or the situation of body.

Implantation material 602a and 602b can permit diagnosing and/or treating for disease and/or various other situations.In some realities It applies in example, implantation material 602 can be used for medical " nerve modulation ", and wherein implantation material 602 is attached to the nerve of body, and detects Or the nerve that stimulation implantation material 602 is attached to.In some embodiments, implantation material 602 can control or adjust the shape of body State or chemical score (for example, introducing of control chemical substance).For example, implantation material 602 can monitor brain or nervous system, and Electro photoluminescence or drug therapy are delivered, to mitigate pain and/or restore function.Alternatively or additionally, implantation material 602 may include Insulin monitor, insulin syringe, hearing aid or pacemaker, and can be used for various situations (including type-2 diabetes mellitus, Rheumatism and ovarian stimulation) other implantation or wearable device.

In some embodiments, implantation material 602 can use one-shot battery as power supply.However, since battery needs more It changes, therefore the replacement of the battery in implantation material 602 may require operation to execute replacement.Correspondingly, alternatively or additionally, it needs The method to power to implantation material 602.Wireless charging and/or power supply transmitting can be provided and be powered for a long time for this implantation material 602 Safer and low wound method.Transmitter 608 can carry out wireless transmission power via wireless field 605, via corresponding Receiver charges to the internal circuit components 604a and 604b of this implantation material 602 and power supply.

However, as described above, implantation material 602a and 602b can wirelessly receive via antenna (not shown) or emit function Rate and/or data.Shielding part 606 can hinder the wireless transmission of power or data, especially when the antenna for transmitting is determined When position is in shielding part 606.Correspondingly, in some embodiments, shielding part 606 can be configured as antenna.Herein This configuration is described in more detail.

Fig. 7 shows the implantation material with the shielding part 702 being placed in around the electrical components in shell (being originally not shown in the figure) 700.In some embodiments, shielding part 702 can be placed in except the shell of implantation material 700, and wherein shell includes implantation material 700 Internal circuit components (not shown).In some embodiments, shielding part 702 can have slot 704, and slot 704 is by shielding part 702 It is separated into two discrete shielding segment 702a and 702b.Two of shielding part 702 discrete shielding segment 702a and 702b can To be connected via the bridge 708 across slot 704.Additionally, each segment packet in two discrete segment 702a and 702b Include feed connection (" feed ") one of 706a and 706b.Feed 706a and 706b can correspond to following position, at this location Power supply or load (in the context of wireless power transmitting) or receiver or transmitter circuitry (are communicated in data or other information In) (not shown) can be coupled to shielding segment 702a and 702b, to be sent out via as the shielding part 702 of antenna operation Penetrate and/or receive power and/or data.For example, transceiver/connect is coupled in the side (for example, shielding segment 702a) of shielding part The input/output of receipts machine, and the other side (for example, shielding segment 702b) of shielding part is coupled on printed circuit board (PCB) Reference ground connection.In some implementations, shielding part 702 can be by bio-compatible (for example, not interfering or causing in user's body Biological respinse) any conductive metal be made.Illustrative metal is titanium.

In some implementations, one or more internal circuits it is common ground connection can be coupled to shielding segment 702a and One or more shielding segments in 702b, as long as the electric current flowed between feed 706a and 706b will not be grounded interruption. For example, common ground connection may be connected to it is in shielding segment 702a and 702b, not close to or along forming the segment of slot 704 Edge any region.In some implementations, common ground connection may be connected to bridge 708.

In some embodiments, shell can be nonconducting and can accommodate shielding part 702, and internal circuit portion Part can be accommodated by both shielding part 702 and shell.In some embodiments, the thickness of shielding part 702 can be at least partly Intracorporal penetration depth is penetrated into depending on the shielded interference of implantation material 700.In some embodiments, slot 704 can be by Opening, gap or hole etc. replace, or may include opening, gap or hole etc..In some embodiments, slot 704 can be by more A slot, opening, gap or hole etc. replace, or including multiple slots, opening, gap or hole etc., shielding part is collectively formed in generation 702 more than two discrete segments 702a-702x.For example, shielding part 702 may include four pieces formed by two slots Section.In some embodiments, one or more slots 704 can provide path for various feeds or other connections, to be coupled to The circuit system accommodated in shielding part 702.Additionally or alternatively, one or more slots 704 can be filled with biofacies Capacity materials (for example, biocompatible ceramics, zirconia-alumina or biocompatible epoxy resin).In some embodiments, it feeds 706 can be placed in any position, for example, in the different fragments of shielding part 702, as long as the different fragments quilt of shielding part 702 It is electrically coupled, signal is allowed to flow to two feed 706a and 706b between two shielding segments 702.

In some designs, shielding part 702 may include multiple groups along the feed 706 for shielding segment (not shown) It closes.In some embodiments, the combined position of feed can depend on frequency (for example, 1GHz is to 3GHz).For example, feed One or more combination can receive or generate wireless field in low-frequency range (for example, 1.6GHz frequency) via shielding part 702.? In some embodiments, one or more combinations of feed can via shielding part 702 in higher frequency band (for example, in 2.4GHz frequency Rate) receive or generate wireless field.Reference impedance can be based at least partially on to determine feed placement.For example, can be based on Corresponding frequency and reference impedance determine the feed placement for different frequency.In some implementations, single feed placement can To provide resonance at single frequency (for example, 900MHz), and two feed placements can two frequencies (for example, 900MHz and Resonance 1900MHz) is provided.Correspondingly, multiple specific frequencies can be supported along multiple feeds that slot 704 positions.Along slot 704 The ratio (for example, impedance) of voltage and current can determine the position of feed.If design reference impedance will be impedance-matched to (for example, 50 ohm), then transmitting the major part of excitation energy by shielding part.In other words, generation, Huo Zhefa are not reflected Raw reduced reflection.

In some embodiments, shielding part 702 (including multiple discrete segments as described herein) can be configured as It is formed and is operated as antenna (similar to the antenna 352 of Fig. 2), be configured as or as receiving antenna or as hair Antenna is penetrated to participate in wireless power and/or data transmitting.In some embodiments, shielding part 702 can be coupled via feed 706 To source or load (not shown).When shielding part 702 is configured as transmitting antenna to operate, source may include transmitting electricity Road, current feed and/or power supply, and when shielding part 702 is configured as receiving antenna to operate, source may include connecing Receipts machine and/or conversion circuitry.Shielding part 702 as antenna may include transmitting and the one or more phases for receiving frequency Answer ground bandwidth.For example, shielding part 702 can have of 925MHz to the 960MHz frequency for receiving power and/or communication One bandwidth and for transmission power and/or the second bandwidth of 880MHz to the 915MHz of communication.

Shielding part 702 and bridge 708 can be configured as at least part around implantation material 700 and essentially form annular (or " coil antenna ").In some embodiments, slot 704 is configured such that shielding part 702 is divided into multiple screens Segment is covered, multiple shielding segments are coupled with multiple bridges 708, multiple annulars are formed at least part around implantation material 700, from And multi-loop antenna can be formed.When serving as receiving antenna, shielding part 702 and bridge 708 be can be configured as in response to being exposed to (not shown) and generate electric current and/or receive inside or via Flied emission data.The electric current of generation can be passed To circuit or load etc., shielding part 702 is connected to the circuit or load etc. via feed 706.When serving as transmitting antenna, screen Shield 702 and bridge 708 can be configured as when from be coupled to via feed 706 shielding part 702 transmit circuit receive electric current and/ Or it is generated when data for emitting wireless power and/or emitting the field of data.In some embodiments, shielding part 702 can be by It is configured to be coupled to other reception/transmit circuits (for example, NFC circuit, Bluetooth circuit, Wi-Fi circuit etc.).In some implementations In example, when forming shielding part 702 by multipair shielding segment, each pair of shielding segment and its corresponding bridge can be configured as conduct It is operated via different transmittings/reception circuit antenna that feed 706 is coupled to.

Individual shielding the segment 702a and 702b of annular, Ke Yiqi are shaped to by separating shielding part 702 via bridge 708 With wireless power and/or data communication.Bridge 708 can permit electric current on shielding both segment 702a and 702b or therebetween Flowing.In some embodiments, when shielding part 702 is used as in the resonator of determining resonance frequency, bridge 708 can be used for permitting Perhaps electric current flows between shielding segment 702a and 702b.When as antenna operation, then the electric current of bridge 708 can be together Phase.In some embodiments, bridge can be used for allowing to shield segment 702a and 702b for cancellation current, for example, when implantation When object 700 is exposed to the interference at the frequency for being not its resonance frequency, for example, when shielding segment 702a on electric current and shielding When electric current on segment 702b has out of phase.Correspondingly, implantation material 700 can be configured as based on shielding 702 He of segment The configuration of one or more slots 704 is not the frequency of its resonance frequency to decay.In its resonance frequency, shielding part 702 can be by It is configured to operate as resonator.In other frequencies, shielding part 702 can be configured as shielding part and operate.It is additional Ground, shielding part 702 can be used for penetrating by providing the extra play that field has to penetrate through to mitigate field.In some implementations, it shields The field that the thickness of part 702 can mitigate shielding part 702 penetrates.For example, the thickness of shielding part 702 can be sufficiently large, it can with prevention The magnetic field of energy is directed through.Correspondingly, shielding thickness can penetrate several times thick than the skin depth of input nonlinearities frequency.

Fig. 8 A shows the first view of the implantation material 800 with shield and twin shaft (for example, multiple conductors) feed.Implantation Object 800 is shown as with pellet elongated shape.The outside of implantation material is covered or is surrounded by shielding part 802.In some embodiments In, shielding part can be by feeromagnetic metal or some other magnetic materials (block other input magnetic fields) or other conductive materials (block other input electric fields) is made.

Fig. 8 B shows the second view of the implantation material 800 of Fig. 8 A.Implantation material 800 includes shielding part 802.Shielding part 802 has There is slot 804, shielding part is divided into two discrete segments by slot 804.By slot 804, the internal electron portion comprising implantation material 800 The shell of part is visible.Additionally, feed 806a and 806b is shown as the slot 804 in the discrete segments of shielding part 802 Opposite side on.One feed 806a may be connected to the left segment 702a of shielding part, and another feed 806b is connected to The right segment 702b of shielding part.Bridge 808 is shown as two segments of coupling shielding part 802.In some embodiments, bridge 808 Can be it is changeable or moveable based on required frequency of fadings, with it is different can selected frequency enable function.

When implantation material 800 is exposed to, shielding part 802 can be with resonance and to receiving circuit and/or load is generated and be applied It is added to the voltage of feed 806a and 806b.When being configured as transmission power and/or data, the shielding part 802 of implantation material 800 can To be coupled to power supply via feed 806a and 806b, and field can be generated, field is for the receiver transmission power into field And/or data.

Fig. 9 A- Fig. 9 C shows the alternative configuration of the shielding part, slot and/or bridge of the implantation material of Fig. 7 and Fig. 8.For example, Fig. 9 A Two vertical slot 904a and 904b are shown, shielding part 902 is separated into four discrete shielding segment 902a-902d.To the greatest extent Pipe is not shown, but multiple bridges can be used to be connected to shielding segment 902a-902b with various configurations, to maximize flute length Degree correspondingly determines the resonance frequency of shielding part 902.Slot 904a and 904b and shielding this of segment 904a-904b are matched Lower resonant frequency response can be provided by setting, and can simplify the manufacture of shielding part 902.In some embodiments, 904 He of slot The configuration of shielding segment 902 can enable implantation material 900 to have any resonance frequency, bracket groove 904, bridge 908 and shielding Different frequency decay configurations may be implemented in the various combination of segment 902.

Fig. 9 B shows two vertical slot 904a and 904b, and bracket groove 904a is moved along the periphery of shielding part 902, and Shielding part 902 is separated into two different part 902a and 902b.However, slot 904b is not moved along the periphery of shielding part 902 It is dynamic, therefore will not shield and be separated into different segments.The configuration of slot 904a and 904b (are contracted for example, slot 904b can be referred to as Short slot) it can be used for increasing the length of slot, and electric current can be along slot 904a and 904b, and can provide equivalent increased Antenna geometries.Correspondingly, induced current can be flowed along slot, this allows than embodiment shown in Fig. 7 A- Fig. 7 B more Small resonance frequency.Bridge 908 is shown as across slot 904a.

Compared with the shielding part 902 of Fig. 9 B, the shielding part 902 of Fig. 9 A can provide lower resonance frequency.However, Fig. 9 B Shielding part 902 the better shielding of shielding part 902 than Fig. 9 A can be provided.For example, since the slot 904 of Fig. 9 B is less than Fig. 9 A's Slot 904, therefore the shielding part 902 of Fig. 9 B can provide the better shielding of shielding part 902 than Fig. 9 A.

Fig. 9 C is shown without the single shortening slot 904 that shielding part 902 is separated into discrete segments.Bridge 908 is also shown in Across slot 904.In such an embodiment, when shielding part 902 is for when emitting, slot 904 to can be radiation source.Slot 904 and bridge 908 Positioning can permit the radiation more oriented for carrying out the slot antenna that free shielding part 902 and slot 904 are formed.It is therefore intended that slot 904 position can permit implantation material using have as the shielding part 902 of the slot 904 of the antenna of implantation material come establish emit The received direction and/or.In some embodiments, since shielding part 902 is not divided into discrete segment, bridge 908 It can be unnecessary.

Figure 10 A shows the 3D chart of the radiation pattern of the antenna corresponding to implantation material (for example, implantation material 700 of Fig. 7) 1000.Chart includes x-axis, y-axis and z-axis.X-axis corresponds to the length of implantation material 700 (for example, the master of the longest slot of implantation material Direction), and y-axis and z-axis correspond to the width and length of implantation material.X-axis is shown as empty, and y-axis and z-axis show omnidirectional radiation Pattern.Therefore, when make in the region that implantation material 700 is positioned in body the length of implantation material (for example, the longest ruler of implantation material It is very little) in the abdomen of body along the longest dimension of body when, the radiation pattern (showing in y-axis and z-axis) of implantation material can be with Waist around body is orientated, and provides omnidirectional's wireless connectivity.

Figure 10 B shows function of the signal strength as frequency of the antenna of instruction implantation material (for example, implantation material of Fig. 7) Chart 1001.Chart 1001 includes x-axis and y-axis.X-axis display frequency, and y-axis shows reflection coefficient.Reflection coefficient can indicate How many projectile energies are implanted object reflection.As indicated, reflection coefficient is -12dB in 2.4GHz, it means that most of input letter Number enter antenna.Correspondingly, the resonance frequency of the antenna of implantation material is about 2.4GHz, and antenna is in the frequency radiation efficiency Highest.

Figure 11 be included according to the exemplary realization of the disclosure in implantable devices receive and/or emit wireless power and The flow chart of multiple steps of the method 1100 of communication.For example, method 1100 can be executed by the PRU 500 illustrated in Fig. 5.Side Method 1100 can also be executed by the implantation material 700 of Fig. 7.It will be appreciated by the skilled addressee that method 1100 can pass through it Its suitable equipment and system are implemented.Although describing method 1100 herein in reference to particular order, in various realizations In, frame herein can be executed in different order or be omitted, and can add additional frame.

Method 1100 starts from operation box 1105, and wherein implantation material 700 connects from the wireless charging electric field vibrated with first frequency Charge power and communication are received, wireless charging electric field is generated by power transmitter unit (PTU).Distinguishingly, the screen of implantation material 700 Shield 702 can be from wireless charging electric field physical receipt charge power and communication.In some implementations, shielding part 702 can respond In being exposed to wireless charging electric field and resonance.

In operation box 1110, implantation material 700 (for example, via shielding part 702) is via the first connection feed and the second connection Feed by institute received charge power and communicate be transmitted to the reception circuit accommodated in shielding part 702.In some implementations, it plants One of charge power and communication can only be received via shielding part 702 by entering object 700.In some implementations, the received power of institute can For powering to the reception circuit or other circuits or circuit system accommodated in shielding part 702.

Circuit is received from the frequency except first frequency in the shielding of shielding part 702 of operation box 1115, implantation material 700 Interference.Correspondingly, shielding part 702 can be configured as the frequency except decaying first frequency.In some implementations, although about It receives power and communication and describes shielding part 702, but shielding part 702 can be configured as one in transmission power and communication Or it is multiple, while shielding the transmit circuit accommodated in shielding part 702 from the frequency except the tranmitting frequency of design and doing It disturbs.

According to certain realizations described herein, the function of method 1100 can be executed for the device of radio reception power In one or more functions.Device may include for from the wireless charging electric field reception charge power that is vibrated in first frequency and The component of communication.It in some implementations, can be by shielding part 702 (Fig. 7), screen for receiving the component of charge power and communication Shield 802 (Fig. 8) or shielding part 902 (Fig. 9) are implemented.In some implementations, for receiving the component of charge power and communication It can be implemented by implantation material 700, implantation material 800 or implantation material 900.In some implementations, for receiving charge power and leading to The component of letter can be configured as the function of executing frame 1105 (Figure 11).Device may further include for via the first connection Feed and second connection feed by institute received power and communication be transmitted to reception circuit component.In some implementations, it is used for The component of the received power and communication of transmission institute can be by being connected to one or more feedbacks of shielding part 702 in feed junction Electricity or feed 706a and 706b (Fig. 7) feed 806a and 806b (Fig. 8) to implement.In some implementations, for transmitting Received power and communication component can be configured as execute frame 1110 (Figure 11) function.

Device, which may further include, receives circuit not by the interference of the frequency other than first frequency for shielding Component.In some implementations, can be implemented by shielding part 702,802,902 for the component of frequency reception circuit.At certain In a little realizations, the component for shielding reception circuit can be configured as the function of executing frame 1115 (Figure 11).

In some embodiments, the device for receiving charge power and communication may include Fig. 5's in some implementations PRU 500 (specifically, antenna 504 can be configured as receiving and receive circuit system 502), and PRU 500 can execute sheet The associated function and method of described in the text.

The various operations of the above method can by be able to carry out operation various suitable components (such as, various hardware and/ Or software component, circuit and/or module) execute.In general, any operation illustrated in attached drawing can be by being able to carry out operation Corresponding functional component executes.

Any various different science and technology and technology be can use to indicate information and signal.For example, can be with through above description Reference data, instruction, order, information, signal, position, symbol and chip can pass through voltage, electric current, electromagnetic wave, magnetic field or grain Son, optical field or particle or any combination thereof indicate.

With logical box, module, circuit and the method and step disclosed herein for realizing related described various diagrams It may be implemented as the combination of electronic hardware, computer software or both.This for illustrating hardware and software for clarity can be mutual Transsexual, component, frame, module, electric current and the step of various diagrams, which have been described above, to be generally described about its function. This function is implemented to depend on specific application as software or hardware and is applied to the design constraint of total system.It is described Function can implement in various ways with for each specific application, but this realizations determines to be not construed as Cause to deviate the range realized.

It can be by general hard with frame, module and the circuit disclosed herein for realizing related described various diagrams Part processor, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic, discrete hardware components are designed to execute function described herein Any combination thereof of energy.Common hardware processor can be microprocessor, but alternatively, hardware processor can be any biography Processor, controller, microcontroller or the state machine of system.Hardware processor can also be embodied as calculating the combination of equipment, for example, The combination of DSP and microprocessor, multi-microprocessor, the one or more microprocessors in conjunction with DSP core or any other This configuration.

It can be directly in hardware, by hardware with the step of realizing related described function and method disclosed herein Implement in the combination of the software module that processor executes or both.If implemented in software, function can be stored Come on tangible, non-transitory computer-readable medium or as one or more instruction or code tangible, non- It is transmitted on temporary computer-readable medium.Software module can reside on random access memory (RAM), flash memory, read-only Memory (ROM), electrically erasable ROM (EEPROM), register, hard disk, moves electrically programmable ROM (EPROM) Disk, any other form of CD ROM or known in the art storage medium in.Storage medium is coupled to hardware processor, makes Hardware processor can be from read information and by information access storage medium.In alternative, storage medium can To be integrated into hardware processor.Plate and dish used herein includes compression dish (CD), laser disc, optical disc, digital multi Dish (DVD), floppy disk and Blu-ray disc, which disk usually magnetically reproduce data, and dish laser optics reproduce data.It is above-mentioned Combination should also be included in the range of computer-readable medium.Hardware processor and storage medium can reside on ASIC In.

For the purpose for summarizing the disclosure, already described herein some aspects, advantage and novel feature.It should manage Solution, not necessarily all this advantage can be realized according to any specific realization.Therefore, the disclosure can with realize or it is excellent Change the mode of an advantage or one group of advantage teaching herein to implement and execute, and not necessarily realizing this paper such as can instruct Or the further advantage suggested.

The various modifications of above-mentioned realization will be readily apparent, and rule as defined herein can be applied to In other realizations, without departing from spirit herein or range.Therefore, the application is not intended to be limited to reality shown herein It is existing, but should be endowed and principles disclosed herein and the consistent widest range of novel feature.

Claims

1. a kind of for receiving the device of wireless power and communication, comprising:

Circuit is received, is configured as receiving wireless communication and charge power；And

Metal structure limits and extends to the gap of second surface from first surface, and by the metal structure, and described first Surface is opposite with the second surface, and the metal structure is configured as:

From charge power described in the wireless charging electric field reception vibrated with first frequency；

Via the first connecting line and the second connecting line, received power and communication is transmitted to the reception circuit；And

The reception circuit is shielded not by the interference of the frequency other than the first frequency.

2. the apparatus according to claim 1 further comprises metal bridge, the metal bridge connects the of the metal structure The second part of a part of and described metal structure, wherein the gap by the metal structure be divided into the first part and The second part.

3. the apparatus according to claim 1, wherein the metal structure further comprises shell, described in the shell receiving Receive circuit.

4. device according to claim 3, wherein the reception circuit includes the implantable devices being implanted in body One or more components, and wherein the reception circuit is configured as the power and communication being transmitted to described implantable set It is standby.

It further comprise the first metal bridge, the second metal bridge and third metal bridge 5. the apparatus according to claim 1, Described in gap the metal structure is divided into first part, second part, Part III and Part IV, and wherein institute The first metal bridge, second metal bridge and the third metal bridge is stated to be configured as connecting first segment, described second Segment, the third segment and the 4th segment, to maximize the length in the gap.

6. the apparatus according to claim 1, wherein the first slot and orthogonal with first slot and be connected to described Second slot of the first slot forms the gap, and wherein the induced current in the metal structure along first slot and institute State the second slot.

7. device according to claim 6, wherein one or more of first slot and second slot are filled There is biocompatible material, and wherein the biocompatible material is one of ceramics, zirconia-alumina and epoxy resin.

8. device according to claim 6, wherein one or more of first slot and second slot are connection Access, one or more circuits that the connection is accommodated out of described metal structure to the sensing outside the metal structure are provided Device or equipment.

9. the apparatus according to claim 1 further comprises the first metal bridge and the second metal bridge, first metal bridge First part and second part across the gap are connected with second metal bridge, wherein the gap is by the metal structure It is divided into the first part and the second part, and the wherein position in the gap and first metal bridge and institute It states the second metal bridge and the orientation use of the metal structure is provided.

10. the apparatus according to claim 1 further comprises transmit circuit, the transmit circuit is configured as via institute Metal structure transmitting wireless communication is stated, and wherein the metal structure will be from the received wireless communication of the transmit circuit It is emitted to another equipment.

11. the apparatus according to claim 1, wherein the metal structure is configured to vibrate from first frequency The wireless charging electric field reception described in communicate.

12. a kind of method for receiving wireless power and communication, comprising:

Via metal structure from the wireless charging electric field reception wireless charging power and communication vibrated with first frequency, the metal knot Structure limits the gap that the second surface of the metal structure is extended to from the first surface of the metal structure, and by described Metal structure, the first surface are opposite with the second surface；

Via the first connecting line and the second connecting line, received power and communication is transmitted to reception circuit；And

Via the metal structure, the reception circuit is shielded not by the interference of the frequency other than the first frequency.

13. further comprising according to the method for claim 12, metal bridge, the metal bridge connects the metal structure The second part of first part and the metal structure, wherein the metal structure is divided into the first part by the gap With the second part.

14. the shell accommodates institute according to the method for claim 12, wherein the metal structure further comprises shell State reception circuit.

15. according to the method for claim 14, wherein the reception circuit includes the implantable devices being implanted in body One or more components, the method further includes the power and communication is transmitted to the implantable devices.

16. it further comprise according to the method for claim 12, the first metal bridge, the second metal bridge and third metal bridge, Wherein the metal structure is divided into first part, second part, Part III and Part IV by the gap, and wherein First metal bridge, second metal bridge and the third metal bridge are configured as connecting first segment, described Two segments, the third segment and the 4th segment, to maximize the length in the gap.

17. it further comprise according to the method for claim 12, the induced current in the metal structure, the electric current edge The first slot and the second slot, second slot is orthogonal with first slot and is connected to first slot, wherein described One slot and second slot form the gap.

18. according to the method for claim 17, wherein the one or more in first slot and second slot is filled out Filled with biocompatible material, and wherein, the biocompatible material is one of ceramics, zirconia-alumina and epoxy resin.

19. according to the method for claim 17, wherein one or more of first slot and second slot are to connect Offer access, one or more circuits that the connection is accommodated out of described metal structure to the biography outside the metal structure are provided Sensor or equipment.

20. further comprising according to the method for claim 12, the first metal bridge and the second metal bridge, first metal Bridge connects first part and second part across the gap with second metal bridge, wherein the gap is by the metal knot Structure is divided into the first part and the second part, and wherein the position in the gap and first metal bridge and The orientation that second metal bridge provides the metal structure uses.

21. the method according to claim 11 further comprises emitting to wirelessly communicate via the metal structure, wherein institute Another equipment will be emitted to from the received wireless communication of transmit circuit by stating metal structure.

22. a kind of for receiving the device of wireless power and communication, comprising:

For via the component for resonance from the wireless charging electric field reception wireless charging power and communication vibrated with first frequency Component, the component for resonance limits the gap for extending through the component for resonance；

For received power and communication to be transmitted to the component for receiving circuit；And

For shielding the reception circuit not by the component of the interference of the frequency other than the first frequency.

23. device according to claim 22, wherein including metal structure for the received component, wherein the gold Belong to the gap that structure qualification extends to the second surface of the metal structure from the first surface of the metal structure, and By the metal structure, the first surface is opposite with the second surface, and the wherein component packet for shielding Include the metal structure.

24. device according to claim 22 further comprises metal bridge, the metal bridge connection is for received described The first part of component and second part for the received component, wherein the gap will be used for the received component It is divided into the first part and the second part.

25. device according to claim 22, wherein further comprise shell for the received component, the shell Accommodate the reception circuit.

26. device according to claim 25, wherein the reception circuit includes the implantable devices being implanted in body One or more components, described device further comprises for the power and communication to be transmitted to the implantable devices Component.

It further comprise the first metal bridge, the second metal bridge and third metal bridge 27. device according to claim 22, Wherein the gap will be used for the received component and be divided into first part, second part, Part III and Part IV, and And wherein first metal bridge, second metal bridge and the third metal bridge be configured as connecting first segment, Second segment, the third segment and the 4th segment, to maximize the length in the gap.

28. device according to claim 22 further comprises for for induced current on the received component Component, for the electric current along the first slot and the second slot, second slot is orthogonal with first slot and is connected to described First slot, wherein first slot and second slot form the gap.

29. device according to claim 28, wherein the one or more in first slot and second slot is filled out Filled with biocompatible material, and wherein, the biocompatible material is one of ceramics, zirconia-alumina and epoxy resin.

30. device according to claim 28, wherein one or more of first slot and second slot are to connect Offer access is connect, the connection is from the one or more circuits accommodated in for the received component to for received institute State the sensor or equipment outside component.